FeaturesSimple, 24 VDC, two wire connectionFast response of capacitive sensor on ceramic substrateSample conditioning provides integral filtering, flow regulation and pressure regulationField calibration/check with optional MMY245Robust design in NEMA 4X (IP66) housingFM approved (Class 1) - Division 2 standard Specifications Sensor element Gold/aluminum oxide, capacitance principle Measuring range (s) -90°C to +20°C dew drop temperature; 0 to 10 ppm-v, 0 to 100 ppm-v or 0 to 1000 ppm-v (adjustable with integrated display) Recommended calibration cycle 6 to 24 months, depending on the application and the required accuracy Calibration accuracy ±2°C dewpoint Repeatability ±1°C dewpoint Maximum RH 50% at dew point > 0°C Temperature coefficient < 0,2°C/°C Operating and storage temperature -40°C to +60°C Max. operating pressure 30 bar (450 psig) Helium leak rate <10-6 mbar l/s